40143044401 has 8 divisors (see below), whose sum is σ = 42518769480. Its totient is φ = 37768915968.

The previous prime is 40143044377. The next prime is 40143044407. The reversal of 40143044401 is 10444034104.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4189196176 + 35953848225 = 64724^2 + 189615^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40143044401 - 2¹³ = 40143036209 is a prime.

It is a super-2 number, since 2×40143044401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40143044407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347196 + ... + 448141.

It is an arithmetic number, because the mean of its divisors is an integer number (5314846185).

Almost surely, 2^40143044401 is an apocalyptic number.

It is an amenable number.

40143044401 is a deficient number, since it is larger than the sum of its proper divisors (2375725079).

40143044401 is a wasteful number, since it uses less digits than its factorization.

40143044401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798323.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 40143044401 its reverse (10444034104), we get a palindrome (50587078505).

The spelling of 40143044401 in words is "forty billion, one hundred forty-three million, forty-four thousand, four hundred one".